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| Algorithms | 3 |
| Computer Storage Devices | 3 |
| Automation | 1 |
| Cost Effectiveness | 1 |
| Costs | 1 |
| Dictionaries | 1 |
| Efficiency | 1 |
| Evaluation Methods | 1 |
| Indexes | 1 |
| Information Retrieval | 1 |
| Information Theory | 1 |
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| Journal of the American… | 3 |
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| Journal Articles | 3 |
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Peer reviewedKotamarti, Usha; Tharp, Alan L. – Journal of the American Society for Information Science, 1990
Reviews the use of signatures to improve the performance of text searching and considers the use of signature trees to further accelerate text searching. Based on the analysis of experimental results, it is concluded that the improvement in text searching performance using signature trees outweighs the increase in required storage. (12 references)…
Descriptors: Algorithms, Automation, Computer Storage Devices, Cost Effectiveness
Peer reviewedJakobsson, Matti – Journal of the American Society for Information Science, 1988
Presents a model and experimental results of a new one-phase technique for compression text files that is a modification of the Ziv and Lempel compression scheme. The description includes the use of a subword dictionary that is periodically reorganized based on information theory and structural linguistics principles. (29 references) (Author/CLB)
Descriptors: Algorithms, Computer Storage Devices, Dictionaries, Information Theory
Peer reviewedPersin, Michael; And Others – Journal of the American Society for Information Science, 1996
Discusses ranking techniques for document retrieval and proposes an evaluation, or filtering, technique that reduces costs and memory usage by early recognition of which documents are likely to be highly ranked. Highlights include index design, ranked query evaluation, reducing the number of accumulators, inverted file structures, and experimental…
Descriptors: Algorithms, Computer Storage Devices, Costs, Evaluation Methods
